Dwarfs

Four dwarfs would prepare firewood for Snow White in580 minutes. After an hour and a half, they recruited friends and finished preparing the wood for 280 minutes. How many dwarfs do they recruit?

Correct answer:

x =  3

Step-by-step explanation:


1.5·60·4 + 280·(x+4) = 580·4

280x = 840


x = 840/280 = 3

x = 3

Our simple equation calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Themes, topics:

Grade of the word problem:

Related math problems and questions: